Combined typewriting and card-perfcrating machine



Sept. '15, 1931. A. G. F. KUROWSKI 1,823,108

COMBINED TYPEWRITING AND CARD PERFORATING MACHINE Filed July 21, 1928 2Sheets-Sheet l INVENTORI Sept. 15, 1931. A. G. F. KUROWSKI 1,823,108

COMBINED TYPEWRITING AND CARD PERFORATING MACHINE Filed July 21, 1928 2Sheets-Sheet 2 Patented Sept. 15,1931- aazam UNITED STATES PATENT oFFicEALFRED G. F. KUROWSKI, OF BROOKLYN, NEW YORK, ASSIGNOR T UNDERWOODELLIOTT FISHER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARECOMBINED TYPEWRITING'A'ND CARD-PERFCRATING MACHINE Application filedJuly 21, 1928. Serial No. 294,347.

The invention relates to a combined typewriting and card-perforatingmachine. The perforating machine or punch, being of the Powers type,forms a separate unit electrical- 1y controlled from the typewriterunit. It operates simultaneously with the typing of a record upon awork-sheet, and perforates cards so as to give a record of certain'dataThe invention relates more particularly to automatic means or a masterswitch for' connecting and disconnecting the two units at propel times.

' Heretofore it was required to manipulate an electric switch so as torender the punch 5 operative, while a selected stretch or zone of thework-sheet passed the typinghne. This involved serious mistakes, anoperator being liable to conditiona machine at inopportune times. Theinvention provides a switch including a contact face which movesunderthe control of the rotaryplaten, and which is timedin such a mannerwith the platen rotation that the punch will be allowed to work during"a selected interval of platen rotationv only, to coincide with saidselected zone upon the work-sheet Before and after this interval, thetypewriter may be operated in the ordi-,

nary manner. I

The master switch includes'preferably a disk of insulating materialwhich is pivoted upon the platen-frame adjacent theplatenshaft andsuitably geared up tothe platenshaft. Partof the cylindrical face of thedisk is formed with a metal contact face to close a circuit, as ittravels past two relatively stationary brushes or terminals. The gearsand the contact face are suitably dimensioned and arranged so that thecircuit isclosed during therequired interval of platen rotation.

The gearing may be speed-reducing so that a working zone requiring aplurality of platen rotations will cause less than a fullrevolution ofthe contact disk. In other words,

during a plurality of platen rotations the contact disk will lie allowedto'move only once through its operating zone, so-that any length of theworking zone may be taken care of. 1

: definite stopping writing line in the body thereof, whichsimultaneously connects the Powers punch, which is to remain inoperation until the form is completed. By rotating the platen the formmay now be returned until free from the feed-rolls and theplaten-cylinder"against a position. -This leaves the machine in correctposition for inserting the next form so that contact will be made againatthe proper time.

Since the contact disk will preferably not perform more than onerevolution, the 1. means required to stop the platen at the initialposition may be suitably arranged in the form of lugs between said diskand the platen-frame.

Another feature relates to, means for fine adjustment in timing theswitch. Tothis end, the stationary brushes are made adjustable so as toadvance or retard the switching. period Other features and after appear.I

In the accompanying drawings,

Figure 1 shows the main operating parts of an Underwood typewriter and aPowers 35 punch, both being electrically connected by a cable. y

Figure 2 is a detail side view upon the platen-carriage showing thenovel platencontrolled main switc platen-shaft. v

Figure 3 is a semi-diagrammatical view parts to illustrate the operationof the electrical equipment.

- Figure 4 shows, in perspective, of the novel automatic main switch,parts drawn apart to show their mounting and mutual relation.

On a typewriter having a main frame 10 are. mounted numeral-keys 11, andalphabet- 100 advantages will hereinas geared up to the co the detailsactuate bell-cranks 14, to swing 21 are successively introduced at the.rear of the platen and fed around it by the usual means includingfeed-rolls 22 and a knob 23, or ratchet 23. The platen is used inlinefeeding the worksheet, but any other rotary line-feeding means maybe used.

The carriage 18 is pulled from left to right by a springmotor24.;connected to the carriage by a strap 25. The type-bars engage auniversal-bar 26 movable rearwardly to actuate an escapeinent-rocker 27carrying escapement-dogs 28 co-operating with the teeth of anescapement-wheel29, to effect step-bystep movements of the carriage bythe operation of any numeral-key 11, or of the alphabet-keys orspace-bar, not shown. The escapement wheel is connected'to, and 1srotated by, a pinion 30 driven by a feed-rack 31 supported by arms 32pivoted to the carriageframe.

Thetabulating mechanism, partly shown herewith, is well-known andincludes a tabulator-key-33 pivoted on'the fulcrum 13 and a rockingframe 35 carrying a series of stops 36. By depressing the tabulator-keythese into the path of a carfeed-rack 31 is disengaged-from the pinion30 by means not shown, 24 effects column-skipping or tabulating. usualbrakepad 38 is attached to the carriage frame and engages an upper chord39 of the rocking frame 35-through the depression of the tabulator-key,thus checking the travel ling speed of the carriage.

Power-driven means for returmng the typewriter-carriage may includeanelectrlc' motor 40 geared to a clutch-member 41 whlch is keyed on anormally-rotating shaft 42.

On the latter also is the slidably mounted pinion 30 having an attachedclutch, not

shown, which has teeth to engage the clutchmember 41. The clutch-pinion30 is normally in mesh with the feed-rack 31 which is attached to thecarriage'by the arms 32. When the carriage has taken its lastletterspacing step the clutch-members are automatically engaged and thepinion acts through the rack to return the" carr age to theright-hand-end of its travel, where the clutch-members are automaticallydisengaged, and the carriage comes to rest-.- carriage-return movementmay also be initiated at any time through the depression of a trip-key,not shown, which acts to enand the spring-motor .61 fulcrumed at 62."The lever 61, through a- When not op narily cut out by a switch, notshown.

In use with the above described typewriter is a Powers key-punch orcard-perforating machine which is synchronized with the typewriter andis electrically operated thereby. The key-punch is a separate unit,controlled through an electric cable, and so perforates the card as togive a graphic record of certain data typed on the work-form 21. Ineffecting this the key-punch completes successive cycles of operationconcurrently with the governing typing machine. As in the latter, suchcycles may be automatically initiated, or may be initiated by thetrip-key.

The Powers'key-punch has a main frame generally indicated by 43 whichsupports an electric motor, notshown, and normally rotating. Such motormay have a separate switch or may be controlled by the same switch whichgoverns the typewriter carriage-return motor 40. In connection with thekey-punch motor is an electrically operated clutch, not shown, which canengage a stub-shaft 44. The latter is automatically disengaged from theclutch at the end of each complete revolution. 7

On the stub-shaft.44 is a driving gear 45 which intermittently rotatesfeed-rolls 46, 47 and 48, and-ejector rolls 49. Also on the I stub-shaft44 is a cam 50, having a groove 51 l provided with a'draw-link 34connecting with in which is a follower roll 52 mounted on an arm. 53.The latter is attached intermediate the ends of a rocker-bar .54,pivoted in a main frame at 55. The rocker-bar carries arms 56 whichengage slidable journals 57 and through which a vertically reciprocablesliding frame 58 may be-actuated. Also on the stub-shaft is a cam 59with a followerroll 60 on a lever spring 63, actuats a feed-plate 64which can slide one card 65 from beneath a stack of cards 66 andposition the'card to be picked up w by the feed-rolls 46. The cards arepressed no flat on the feed-plate by a weight 67 within a card-containeror guide 68 mounted on the. main frame.

The sliding frame-58 carries a die-plate 69 and punches 70, having heads71. The punches are guidedat their upper ends by a fixed plate-72carried by the main frame 43.

The plate 72, through the heads 71, prevents the punches from fallingthrough the dieplate and maintains a'space between the latter and thepunches for the insertion of a card. The punches usually are in columnsof twelve each and'with a total of forty-five columns. A super-plate 73is carried by the verticallysliding'frame 58 and guides the lower end ofthe punches. The super-plate also holds the carddown when the punchesare withdrawn therefrom and keeps the card fiat so its edge mayregister, to be picked up by the ejector rolls 49.

Supported on themam frame 43 are rails I 74 on which run rollers 75.These rollers support a travelling frame 76. which is kept down on therails by holding rolls 77. The travelling frame carries a late 78 andalso has cross-bars 79 and 80 whlch support other plates 81, 82 and 83.The plates-81, 82 and 83 have rectangular holes which register one abovethe other and with the heads of the punches 70. In these three platesthese holes t pins 84, each of which registers with an underlying punch.Each pin has a fixed collar 85 and a compression-spring 86. The

1 springs permit the pins to be depressed, but

also co-act with the plate 83 to raise the.

collars againstthe plate 82 which limits the upward movement of thepins. The pins may be held down through cam-face notches 93 engaging a,series of latch bars 94 which are pressed into the notches by springs95.

In the plate 78 are twelve holes that can register with any one columnof ms. Through these holes pass plungers 87 w hich are pivotallysupported on bell-cranks 88. The latter are fulcrumed on a shaft 89 andat their free ends abut push pins 90, which slide in a support 91mounted on the travell1ng frame 76. Also pivotally mounted on thefulcrum 89 is a universal-bar92which is spring pressed against thebell-cranks 88. The universal-bar by such pressure normally keeps theplungers raised and the push pins within their support. I

For advancing the travelling frame in a hole-spacing direction, there isa spring motor, not shown, to .which is attached a strap 96. The latteris connected to an arm 97 pivoted at 98 to the travelling frame 76. Thehole-spacing mechanism includes an 'escapement-wheel99 attached to apinion 100 andmounted on the travelling frame at 101.

The pinion rolls along a rack 102attached to the main frame 43. Theescapementwheel has teeth with a suitable pitch which are engaged by astepping dog 103 fixed on a shaft 104 and having a pin 105. A holdingdog 106 is loosely mounted 9n the shaft 104 and alongside the steppingdog. The

holding dog has an arm 107, a pin 108 and a spring 109 which normallyholds the dog in engagement.

When a push pin 90 is pro ected from its support 91, as will beexplained hereinafter, the bell-crank 88 will move the universal-bar 92.The latter, through means not shown, vibrates the escapement-dogs, and

. hole-spaces the travelling frame each time a numeral-key or thespace-bar is depressed.

. To permit column tabulation on the cardperforator, the usual means areprovided to disengage the escapement mechanism. Such means include alever 110 pivoted at 112 to swing at right angles to the holding dog106. Said lever has a pin 111 which'projects to underlie the pin 108 insaid holding dog. The lever 110 is normally held in disshaft 89. Thebell-crank 113 has an extension 114 which overlies an arm 115 on thelever 110. When the bell-crank 113 is actu- I ated by a push pin 9 0,the extension 114 depresses the arm 115 of the lever 110, and the pm 111will raise the pin 108 and disengage the holding dog. The lever 110 isthus maintained by a spring-pressed latch 116 whichis pivoted on an ear117 of said lever. The latch in'turn is caught upon a plate 118 and isheld thereby during a tabulating movement. At the termination of thelatter, a'counter stop 119 trips the latch 116, thereby restoring thelever to normal position and permitting the holding dog 106 to re-engagethe escapement-wheel. The counter stops are mounted on a notched bar 120supported on the main frameby upsmooth perimeter, is a metal strip 130which extends part way around the circumference of the. disc. p

Mounted on the typewriter-carriage .18 is a plate 131 havinga dependentear 132 which is bored to'receive the stud 126. The plate is attached tothe carriage by screws 133 which also hold an angle plate 134. Thelatter is slidably adjustable through slots 135 and is tapped near oneend to receive screws 136 which hold an insulating block 137. On thelatter rest brushes 138 which are secured to the blockby binding screws139 to which wires 140- are attached. The top of the insulating blockmay be recessed along opposite edges to maintain the brushes in parallelali ment and thus avoid short circuiting. he spur gear 125 and theinsulating disc 129 are assembled on thestud 126 and are loosely heldthereon by a washer 141 and its nut 142. The gear and disc are attachedby countersunk screws 143. The plates 131 and 134, and the block 137 areattached to the carriage frame 18, and the stud is attached to the carthrough a nut 144. The brushes 138and the wires 140 are then attached tothe block so that when assembled the parts will assume the relativepositions shown in Figure 3.

As shown in Figure 3 also, the spur gear 125 abuts the metal strip 130.If thisgear were of metal a short circuit or ground'might result. Thegear 125,therefore, may be made of fiber, or an insulator or spacer maybe added between said gear and the insulating disc 129. Also shown inFigure 3 is a tongue 145 on the ear 132. This tongue functions as a stopto engage a lug 146 which is attached to an insulating plate 152 by.binding screws that also hold one wire of a normally open circuit.Other contacts 153 arealso carried by the insulating plate and are.attached to another wire in the same circuit. The last-mentioned wires,together with the-wires 140, are usually gathered into a cable 154 thatmay be of any I a convenient length.

Onepole of the brushes 138 is connected to a motor-generator 155 and toa series of electro-magnets or solenoids 156, while the other pple isCI'OSSrCODTlGCtBdtO all the contacts 151. rom each contact 153 a wireextends to either one or more electro-magnets. The

latter have cores 157 that become magnetized and are raised each timethe solenoids are enwires 158 which are slidable inflexible tubes 159.The latter at one. end are attached to a case, not shown, which containsthe electromagnets, and at the other end are fixed in thesupport 91.

This invention pertains particularly to the.

amounts may be typed. The figureson the lower portion of one work-formare often compiled with the figures of many other' forms. When this isdone mechanically the primary factor. used is a card-perforatingmachine.

lVith this invention a-work-fbrm 21 is rearinserted in the typewriter,as shown by Figure 2. The work-form is then platen=rolled until its topline assumes a typing position,

and the data is typed in on its upper portion.

During this typing the usual line-spacing -movement has rotated thegears 122 and 125.

When the last line has beentyped on said upper portion, the attachedinsulating disc will then be in the position shown in Figure 3. Duringsuch typing the,card-p)erforating machine has not been in operationecause not electrically connected to the typewriter.

When the work-form has been advanced into the zone of its lower portionby. the line- .spacing movement, the insulating disc will also have beenadvanced thereby in the direction shown by the arrow in Figure 3. Suchadvancement, which is slight,'will, of course,

advance the metal strip. 130 and'cause it to bridge the gap and closethe electric circuit, which until then has been open between thetwo-brushes 138. The motor-generator 155 can then energize this circuitas soon as afsecond gap therein is closed. This second gap interlies thecontacts 151 and 153.

When the space-bar or trip-key are depressed, or when a numeral-key 11or the tabulator-key 33 are depressed, one of said second gaps isclosed. Such closure serves 'to energize one or-more solenoids whichthen function to carry out the desired results .in

the card-perforating machine. Where a key bearing asingle numeral isdepressed, one

solenoid acts to raise its core 157 which slides its push wire 158throughthe tube 159. The

push wire in turn projects an abutting push pin against its bell-crank88, which depresses its plunger 87. The lunger depresses a pin 84 which,through ltsnotch 93, is caught and held down by a spring-pressedlatch-bar 94.

Said numeral-key having been released and --th e solenoid thusdemagnetized, the springergized. These'cores are attached to pushpressed universal-bar 92 will, restore said plunger, bell-crank, pushpin, push wire, and

core to their former normal positions. Also,

upon the release of said key, the typewriter;

carriage is letter-spaced and the travelling frame 76 is hole-spacedthrough its universalbar 92. If a key having the letters of a word orsyllable thereon be actuated the above cycles of setting and releasingare simultaneously inaugurated by two or more solenoids to set twoor'more pins in any one column. This is accomplished by connectingtwo ormore solenoid circuits to one of the contacts underlying thelogotype-key.

By the successive depression of either the space-bar or tabulator-keywith the numeralkeys, one horizontal line of figures is eventually typedin the proper columns 'on the 'lower portion or zone of the work-form.

Each numeral-key depressed has concurren tly set its correlative pin ineach corresponding column of'the card-perforating machine. Underlyingthese' pins an imperforate card has been positioned on the die plate 69.A partial rotation of the shaft 44 raises the die-plate, and the cardthereoncarries up the punches 70. The punches held down 'by.the pins84-will then'perforate the card. Such punching may be automatic or maybe initiated through the trip-key.

his

1 to function. It 'will thus lie inoperative untili chine left ready forA further rotation ofthe-shaft completes its intermittent onerevolution, when thedieplate will drop to rest and the card will bereleased for removal. The card,-hav-ing been punched, the travellingframe 76 will automatically return to its starting point. During suchreturn the pins will be released by well-known means the initiation ofanother cycle.

The cards which are-perforated may have printed captionsand columnlines, or may be,

blank and be identified by a hole so positioned as to classify-them.vThe cards are usually stacked in thecard-container 68. Before initiationof the typing operations the perforating machine is tripped to cause onerevolution of its shaft which positions a card for an ensuing punchingoperation; After punching, the first card is advanced byv the ejectorrolls 49 and drops into a card-recep-;

tacle 160. The first card is ejected simultaneously with the insertionof a second card which then lies positioned to be-punched.

During the above cycles of operation one line has been typed in thelower zone of the work-form 21 and one card has'been perforated. Otherlines may be successively typed in said lower 'zone until the bottomedge of' the work-formis reached. For each of-said lines typed one cardwill be'correspondingly perforated. When-such typing has been completedthe platen is rotated in a reverse direction to that of line-spacing.This willreturn the work-form to the position shown in Figure 2 whereit'is free to be removed.

In reversing the rotation of'the platen, the' gears 122 and 125willrevolve the insulat ing disc 129, and itsmetal strip 130 willfinallyceaseto bridge the gap between the brushes 138. .This circuit,therefore, is againbroken and the'perforating machine ceases an ensuingwork-form has been inserted and advanced to the point where said metalstrip again bridges said gap.

V This invention is most advantageously used when the gears .122 and 125are proportioned according to the zones of the work-form used.

lVith a proper gear ratio there will be little lost motion in advancingor retracting the work-form between its insertion and its removal. Thisresults when the' gear ratio causes the metal strip 130 to bridge thebrushes 138 at just the right time. As the division between the upperand lower typing zones will vary on-diiferent styles of workforms, thegears are usually furnished to meet the requirements of the particularform to be.

typed.

lVith a gear form, it is still possible touse the same gears for anotherwork-form which has a different locationof the division between the twozones. This may be done by substituting an insulatand the perforating,ma-

tion correctly embodied in ratio proportioned for any one ing dischaving a greater or a less diameter.

This insures *a longer or a shorter circumferential travel, wherebyitsnon-conducting surface may be made to register with the travel of theupper zone on the work-form; Another variation is possible by attachingthe insulating disc ata different radial location on the gear 125. Afurther variation of the work-form zones may also be met by lengtheningor shortening the metal strip 130.

When the rotating members of this invention have been properlyproportioned to funcwith a given work-form, it is necessary that theyalways be correctly positioned for the insertion thereof. This isinsured when the lug 146 as shown in Figure 2.

to thus abut these two members. Thereafter each successive work-form,having-the same length, willfwhenremoved, leave these two members inabutment. I This is because the forward travel of the work-form, afterinabuts the tongue-T145, Before insertingan initial work-form,therefore, care is taken sertion, is always retraced in full beforeremoval. The work-form is both inserted and' removed, therefore, when inthe location shown in Figure 2.. j p

The foregoing description covers theme of a comparatively shortwork-form which'is card-perforating operations are desired.

removed, and in which the having captions printed operations are madepossible Q be positioned opposite the i When using a continuouswork-form the lug 146 would be removed from the gear 125 to permitcomplete revolutions in one direc-v tion of said gear and its attachedinsulating disc. Said disc also would first be properly registered withthe alternate zones on the continuous work-form. This is accomplished byreleasing the rolls are again made operative to hold the form. Thisinvention, therefore, is not limited to the useof an. insulating dischaving one metal strip. It could, in fact, have two or even more. 1

It is desirable to provide means for .fine adjustment in order toaccurately time the switch. This end may be simply attained by adjustingthe brush-carrying angular plate j 130 i l 134, as indicatedby thescrew-and -slot COD? feed-rolls andproperly positiOning said form. Aftersetting, the feed- [contact-as it travels past the same, means Y and.means aving thus described. my'invention, I

1. Inga combined typewriting and carda perforating machine,"saidtypewriting ma- 10 chine having a rotary platen and means for-electrically' controlling said perforating machine, in combination, amaster switch for,

a controlling the working current, while a selected zone of a work-sheetcrosses the typing fline, said switch including a traveling contactmember-,and relatively stationary poles to co-operate' therewith to makeand break for transmitting movement from-the rotary platen to saidcontact member to operate the same, and means for timing the'travel ofsaid contact member with the movement of the platen, so as to close theswitch during a predetermined interval of platen rotation to coincidewith-the selected zone upon the work-sheet.

v 2.-; In acombined typewriting and cardperforating machine, saidtypewriting machine having a rotary platen, a platen-frame, aplaten-carriage and means for electrically controlling the perforatingmachine, incombination, a master switch to be mounted upon theplaten-frame, for'controlling the working current while a selectedzoneof a work-sheet crosses the typing line, movement-transmitting meansbetween the rotary platen and said switch for positively controllingthe'latter from the platen, means for timing the operation of theswitch, so as to close the same during a predetermined interval ofplaten rotation to coincide with said selected zone, and flexibleconnections to conduct the working current over-said switch while thecarriage is freely movable.

In a combined typewriting and cardperforating machine, said typewritingmachine having a rotary platen, a platen-frame for electricallycontrolling said perforating machine, in combination, a rotary masterswitch mounted upon the platenframe for controlling the working currentwhile a selected zone of a work-sheet crosses the'typing line, a trainof gears between a platen-shaft and said rotary switch to allow theplaten to operate the switch, and means for timing the operation of theswitch with the rotation of the platen, so as to close the switch duringa predetermined interval 0 platen rotation to coincide with saidselected zone upon the work-sheet; 4. In a combined typewriting andcardperforating machine, said typewriting machine having a rotary platenand means for electrically controlling said perforating machine, incombination, a rotary master switch for controlling the working current,

includin a rotary contact member formed with a iskof.insulating materialand a metal contact face thereon, and including relatively stationarybrushes to co-operate with said contact member to periodically make andbreak contact, and means for positively transmitting platen rotation toactuate said contact member in a manner to close the switch during apredetermined interval of platen rotation to coincide with a selectedzone upon the work-sheet. v

5. In a combined typewriting and cardperforating machine, saidtypewriting machine having a rotary platen, a platen-frame and means forelectrically controlling the 6. In a combined typewriting andcardperforating machine, said typewritin machine having a rotary platen,a platenrame and means for electrically controlling the' perforatingmachine, in combination, a master switch mounted upon the platen-framefor controlling the working current while a selected zone of awork-sheet crosses the typing line, a bracket for mounting the switchupon the platen-frame adjacent the platenshaft, a gear associated withthe switch, and another gear mounted upon the platen-shaft, said gearsto be co-operatively engaged when the bracket is in place to positivelycontrol the switch, so as to close the same during a predeterminedinterval of platen rotation to coincide with said selected zone upon thework-sheet.

7. .In a combined typewriting and cardperforating machine, saidtypewriting machine having a rotary platen and means for electricallycontrolling the perforating machine, in combination, a rotary masterswitch for controlling the working current while a selected zone of awork-sheet passes the typing line, said switch including a rotary conftact member, relatively stationary brushes to co-operate therewith tomake and break contact and means for adjusting said brushes relativelyto said contact member to retard or advance the action thereof, andmeans for controlling the switch from the platen, so as to close thesame during a predetermined interval of platen rotation to coincide withsaid selected zone upon the work-sheet, said brushes adjustable tocorrectly time the switch.

8. In a combined typewriting and cardpertorating machine, saidtypewriting machine having a platen, a platen-carriage and means forelectrically controlling said perforating machine, including a masterswitch geared directly to said platen, means for controlling the switchfrom the platen line-space movements in order to close the circuit whilea selected zone of a work-sheet is being written, so as to concurrentlyoperate the perforating machine, and adjustable means for timing theoperation of the switch with the platen movement.

9. In a combined typewriter and cardperforator, a platen for thetypewriter, and electric means for controlling said perforator by aline-spacing movement of said platen, including a switch, and alsoincluding mechanism connecting the switch to said platen andautomatically efiective to operate the switch and stop andstart theperforator.

10. In a. combined typewriter and cardperforator, a platen for thetypewriter, a working circuit, a switch therefor, and gearing connectingthe platen to said switch to control the perforator from the line-spacemovements of said platen during the time predetermined zones of awork-sheet occupy the typing line of said typewriter.

11. In a combined typewriter and cardperforator, a platen for thetypewriter, an electric circuit for operatively connecting theperforator with said typewriter, a switch in said circuit, and mechanismconnecting the switch with said platen, including means for closing saidswitch during predetermined portions of line-space travel of saidplaten.

12. The combination with a card-perforator and a typewriter having aplaten, of 0011- necting means between the pertorator and the typewriterfor controlling the perforator by the typewriter through theline-spacing movements of said platen, said controlling means includinga movable member responsive to said platen movements, and operative toput the perforator into and out of'operation.

13. The combination with a card-perforator and a typewriter having aplaten, of connecting means between the perforator and the typewriterfor controlling the pertorator by the typewriter through theline-spacing movements of said platen,'said controlling means includinga movable member responsive tosaid platen movements, and also includinga device interpolated between the platen and the movable member todetermine the distance traveled by the platen, said movable member beingautomatically effector and a typewriter having a revoluble platen, ofconnecting means between the perfora-' tor and the typewriter forcontrolling the perforator by the typewriter through the line-spacingmovements of said platen, said controlling means includinga rotatablemember responsive to said platen movements, and also including gearinginterpolated between the platen and the rotatable member to predeterminethe relative peripheral travel of said member as compared with theline-spacing travel of the platen, said rotatable member beingautomatically effective to put the perforator into and out of operation.

15. The combination with a card-perforator and a typewriter having aplaten, of connecting means between the perforator and the'typewriterfor controlling the perforator by the typewriter through theline-spacing movements of said platen, said controlling means includinga member responsive to said platen movement-s and effective to put theperforator into and out of operation, and means for adjusting thecontrolling member with reference to said platen.

ALFRED G. F. KUROWSKI.

tive to put the perforator into and out of operation.

14. The combination with a card-perfora-

